Merge pull request #2 from pratik-vii/metering

 signature authorisation added for demon request

Author: pratik-vii

metering/.gitignore

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+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+*.egg-info/
+.installed.cfg
+*.egg
+settings.py
+
+# Serverless directories
+.serverless

metering/__init__.py

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+def usage_entity_to_model():
+    pass
+
+
+def usage_model_to_entity():
+    pass

metering/adaptors.py

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+# A generic, single database configuration.
+
+[alembic]
+# path to migration scripts
+script_location = alembic
+
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# timezone to use when rendering the date
+# within the migration file as well as the filename.
+# string value is passed to dateutil.tz.gettz()
+# leave blank for localtime
+# timezone =
+
+# max length of characters to apply to the
+# "slug" field
+# truncate_slug_length = 40
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+# set to 'true' to allow .pyc and .pyo files without
+# a source .py file to be detected as revisions in the
+# versions/ directory
+# sourceless = false
+
+# version location specification; this defaults
+# to alembic/versions.  When using multiple version
+# directories, initial revisions must be specified with --version-path
+# version_locations = %(here)s/bar %(here)s/bat alembic/versions
+
+# the output encoding used when revision files
+# are written from script.py.mako
+# output_encoding = utf-8
+
+sqlalchemy.url = mysql+pymysql://url
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S

metering/alembic.ini

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+Generic single-database configuration.

metering/alembic/README

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+
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+from models import Base
+
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=target_metadata, literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection, target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

metering/alembic/env.py

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}

metering/alembic/script.py.mako

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+"""status added in calls tables
+
+Revision ID: 9ecbd29ee907
+Revises: eeec29a1af7b
+Create Date: 2019-08-12 15:13:51.507698
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '9ecbd29ee907'
+down_revision = 'eeec29a1af7b'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('usage_table', sa.Column('status', sa.VARCHAR(length=225), nullable=False))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('usage_table', 'status')
+    # ### end Alembic commands ###

metering/alembic/versions/9ecbd29ee907_status_added_in_calls_tables.py

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+"""added tables
+
+Revision ID: eeec29a1af7b
+Revises: 
+Create Date: 2019-08-08 19:15:24.337631
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'eeec29a1af7b'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('service_config',
+                    sa.Column('id', sa.Integer(), nullable=False),
+                    sa.Column('org_id', sa.VARCHAR(
+                        length=225), nullable=False),
+                    sa.Column('service_id', sa.VARCHAR(
+                        length=225), nullable=False),
+                    sa.Column('free_calls', sa.Integer(), nullable=False),
+                    sa.Column('effective_start_date', sa.TIMESTAMP(
+                        timezone=True), nullable=True),
+                    sa.Column('effective_end_date', sa.TIMESTAMP(timezone=True),
+                              server_default=sa.text('CURRENT_TIMESTAMP'), nullable=True),
+                    sa.Column('created_at', sa.TIMESTAMP(
+                        timezone=True), nullable=True),
+                    sa.PrimaryKeyConstraint('id')
+                    )
+    op.create_table('user_org_group',
+                    sa.Column('id', sa.Integer(), nullable=False),
+                    sa.Column('group', sa.VARCHAR(length=225), nullable=True),
+                    sa.Column('org_id', sa.VARCHAR(
+                        length=225), nullable=False),
+                    sa.Column('user_name', sa.VARCHAR(
+                        length=225), nullable=False),
+                    sa.Column('created_at', sa.TIMESTAMP(timezone=True),
+                              server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
+                    sa.Column('service_id', sa.VARCHAR(
+                        length=225), nullable=False),
+                    sa.Column('resource', sa.VARCHAR(
+                        length=225), nullable=True),
+                    sa.PrimaryKeyConstraint('id')
+                    )
+    op.create_table('usage_table',
+                    sa.Column('id', sa.Integer(), nullable=False),
+                    sa.Column('user_org_group_id',
+                              sa.Integer(), nullable=False),
+                    sa.Column('usage_type', sa.VARCHAR(
+                        length=225), nullable=False),
+                    sa.Column('usage_value', sa.Integer(), nullable=False),
+                    sa.Column('start_time', sa.TIMESTAMP(
+                        timezone=True), nullable=True),
+                    sa.Column('end_time', sa.TIMESTAMP(
+                        timezone=True), nullable=True),
+                    sa.Column('created_at', sa.TIMESTAMP(timezone=True),
+                              server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),
+                    sa.ForeignKeyConstraint(['user_org_group_id'], [
+                        'user_org_group.id'], ),
+                    sa.PrimaryKeyConstraint('id')
+                    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('usage_table')
+    op.drop_table('user_org_group')
+    op.drop_table('service_config')
+    # ### end Alembic commands ###

metering/alembic/versions/eeec29a1af7b_added_tables.py

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+class StatusCode:
+    BAD_PARAMETERS_CODE = 400
+    SERVER_ERROR_CODE = 500
+    SUCCESS_POST_CODE = 201
+    SUCCESS_GET_CODE = 200
+
+
+HEADER_POST_RESPONSE = {
+    "Content-Type": "application/json",
+    "Access-Control-Allow-Origin": "*",
+    "Access-Control-Allow-Methods": "OPTIONS,POST,GET"
+}
+
+
+class StatusMessage:
+    BAD_PARAMETER = "Request validation failed"
+    SERVER_ERROR_MSG = "failed"
+    SUCCESS_POST_CODE = "successful"